The first 2,000 customers to order from the official website will have the chance to avail the engraving service at no cost as well as a free mobile cover with the phone, the company said in a statement.

Mark 1 comes packed with unique and compelling OS level features such as "Retriever" -- an app that never lets you lose your phone and "Echo" -- a voice based answering machine system completely independent of carriers and devices.

It comes with "Sense" -- a universal phone search that finds what you're looking for when you double tap on the home button and Camera Modes such as Live-photo, 3D selfie, Slo-Mo videos and Time Lapse to name a few.

The Mark 1 comes with a sleek metal body protected by Corning Gorilla Glass 3 on both sides with 2.5D curves. It comes in a gun-metal black colour with a 5.5-inch Quad HD display, 21-megapixel rear camera and an 8-megapixel front camera.

The device is powered by 1.95 GHz True Quad Core Helio X10 processor with 3 GB RAM and 3100mAh battery. Mark 1 has a 32GB on-board memory which can be expanded upto 128GB and supports duel SIM. The company promises "a new smartphone update every month."